echo befehl funktioniert
This commit is contained in:
Tristan Krause
parent
13e95264fb
commit
fae65afe8b
177
B15F.hex
177
B15F.hex
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@ -6,91 +6,100 @@
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4
Makefile
4
Makefile
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@ -10,9 +10,9 @@ OBJCOPY_PATH = C:\avr8-gnu-toolchain-win32_x86\bin\avr-objcopy.exe
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OUTPUT = B15F.elf
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HEX = B15F.hex
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CFLAGS = -std=c++14 -O3 -mmcu=atmega1284 -DF_CPU=20000000 -DPIO_DISABLE_I2C
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CFLAGS = -std=c++14 -O3 -mmcu=atmega1284 -DF_CPU=20000000
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LDFLAGS =
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OBJECTS = main.o spi.o mcp23s17.o tlc5615.o adu.o selftest.o global_vars.o
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OBJECTS = main.o spi.o mcp23s17.o tlc5615.o adu.o selftest.o global_vars.o usart.o
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COMPILE = $(COMPILER_PATH) $(CFLAGS)
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@ -7,3 +7,4 @@ MCP23S17 sw(spi, SPIADR::SWITCH);
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TLC5615 dac0(spi, SPIADR::AA0);
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TLC5615 dac1(spi, SPIADR::AA1);
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ADU adu;
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USART usart;
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#include "mcp23s17.h"
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#include "tlc5615.h"
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#include "adu.h"
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#include "usart.h"
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extern SPI spi;
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extern MCP23S17 beba0;
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@ -12,5 +13,6 @@ extern MCP23S17 sw;
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extern TLC5615 dac0;
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extern TLC5615 dac1;
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extern ADU adu;
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extern USART usart;
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#endif // GLOBAL_VARS_H
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11
main.cpp
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main.cpp
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sw.setDirB(0xFF); // alle Eingang
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adu.init();
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usart.init();
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}
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void handleRequest()
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{
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const uint8_t req = usart.readByte();
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uint8_t dummy = usart.readByte();
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usart.writeByte(USART::MSG_OK);
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usart.writeByte(dummy);
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}
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int main()
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while(1)
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{
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testAll();
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handleRequest();
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}
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return 0;
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26
usart.cpp
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usart.cpp
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#include "usart.h"
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void USART::init()
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{
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UCSR0B = _BV(RXEN0) | _BV(TXEN0);
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// Einstellen des Datenformats: 8 Datenbits, 1 Stoppbit
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UCSR0C = _BV(UCSZ00) |_BV(UCSZ01);// (1<<URSEL0)|(1<<UCSZ10)|(1<<UCSZ00);
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// setze Baudrate
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UBRR0H = (((F_CPU / (16UL * BAUDRATE))-1) >> 8) & 0xFF;
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UBRR0L = ((F_CPU / (16UL * BAUDRATE))-1) & 0xFF;
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}
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void USART::writeByte(uint8_t b)
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{
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UDR0 = b;
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while(!(UCSR0A & _BV(TXC0)));
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}
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uint8_t USART::readByte()
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{
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while (!(UCSR0A & (1<<RXC0)));
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return UDR0;
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}
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20
usart.h
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20
usart.h
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#ifndef USART_H
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#define USART_H
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#include <avr/io.h>
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#include <stdint.h>
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constexpr uint16_t BAUDRATE = 38400UL; //9600UL//9600
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class USART
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{
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public:
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void init(void);
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void writeByte(uint8_t);
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uint8_t readByte(void);
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constexpr static uint8_t MSG_OK = 0xFF;
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constexpr static uint8_t MSG_FAIL = 0xFE;
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};
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#endif // USART_H
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